Q.

Potassium permanganate oxidizes oxalic acid to CO2 in acidic media.  The number of mole of KMnO4required to oxidize 0.5 mole of oxalic acid

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a

0.6

b

1

c

0.8

d

0.2

answer is A.

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Detailed Solution

n-factor of oxalic acid is 2;

n-factor of KMnO4/H+ is 5;

2 moles KMnO4/H+ oxidizes 5 moles oxalic acid.

x ………………………………0.5…………….

x=0.2 ;

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